cities each have their own culture. in san francisco, a greeting to a stranger is likely to be returned n new york, ignored and in los angeles responded to with frigid rage. [laughter] likewise, of course, there's our beautiful american culture. it can be found most readily in our jokes, puns or illusions and the illusions of stand-up comedy or television commercials. they're the most powerful and cohesive. here's a great television commercial we saw at the super bowl. there's a holocaust of some time, a city's buried in rubble. later tough trucks of the manufacturer's brand emerge one by one, and the truck drivers get out to congratulate each other, all glad to be alive having had the wisdom to purchase so great a truck. and one survivor says to another, have a twinkie. [laughter] so what do we have here, but an illusion to a magnificent american myth; an urban legend taken from the very schoolyard where we've told ourselves for 50 years twinkies have a shelf life of 10 million years. [laughter] so why might people enj